Customer Accounts Receivable, Net - Additional information (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Oct. 29, 2011	Jan. 29, 2011
Financing Receivable, Recorded Investment, Past Due [Line Items]
Allowance for doubtful accounts, write-off	$ (1.3)
Gross customer accounts receivable, deemed uncollectible and have ceased to accrue finance charge income	0.3	0.4
Gross customer accounts receivable, 90 days or more past due upon which finance charge income continued to be accrued	$ 1.2	$ 1.2